Air-lift pump.



, O. E. HARRIS.

AIR LIFT PUMP. APPLICATION FILED JUNE 20, 1910. RENEWED APR. 15, 1912. 128,2@9

v Patented June 4, 1912.

\ OHo E Harris,

witnesses ij" G Hoznuf.

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OTTO E. HARRIS, OF INDIANAPOLIS, INDIANA.

AIR-LIFT PUMP.

' Specification of Letters Patent.

Application filed June 20, 1910, Serial No. 568,038. Renewed April 15,1912. Serial No. 691,003.

To all whom it may concern:

Be it known that I, OTTO E. I'IARRIS, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented a new and useful Air-Lift Pump, of which the following isa specification.

The object of my invention is to produce an air lift pump nozzle of highefficiency.

The accompanying drawings illustrate my invention.

Figure 1 is an axial section of my improved nozzle in position withinawell casing; Fig. 2 a horizontal section on l1ne 2 of Fig. 1; Fig. 3 ahorizontal section on line 3-3 of Fig. 1.

In the drawings, 10 indicates the main tubular body of my improvednozzle, the lower end 11 thereof being of a diameter which is but verylittle less than the internal diameter of the well casing 12. Theportion 11 is provided with a depending threaded flange 13 adapted toreceive the threaded ring 1 1 of a perforated guard 15 which permitsfree inflow from the lower portion of the well casing. Arrangedin thelower end 11 of the main body 10 is a rin 16 surrounded by water inletpassages 1? and threaded into ring 16 is the lower end of a tube 18having a threaded upper end 19 of considerably less diameter than thelower end. Threaded upon the upper end 19 of tube 18 is a conical tube21 and this tube carries a conical tube 22 which, in turn, carries aconical tube 23, the upper end of the last tube 23 coming quite close tothe lower end 24 of the water outlet pipe which is threaded into theupper end of main body 10. Leading into the bottoms of each of theinspirator tubes 21, 22 and 23 are water passages 25. The main tubularbody 10 is tapered upwardly and inwardly and is perforated at 26 for adistance beginning below the bottom of tube 21 and ending at a point ator below the bottom of tube 23.

In many wells, the water supply comes both from above and below thepoint at which the ump is most economically located but In structureswhich have been commonly used heretofore the flow from the upper regionsof the well has been seriously obstructed because of the formationofmain body of the pump. In my present formaceive the air pipe 32.

tion, the portion 11 of the pump fills the casing 12 to such an extentas to materially obstruct the flow from the upper portions of the wellto the cage 15 but, by tapering the main body and then perforating thewalls at 26 above the portion 11, and providing the inspirator tubes 21,22 and 23, I am able to operate upon the water supply coming from theupper regions of the well, as well as to operate upon the water supplyfrom the lower regions of the well.

Formed integral with body 10 is an air tube 31, the upper end of whichopens outside of the main body 10in position to re- The lower end of theair tube 31 projects downwardly into cage 15 and is turned upwardly at33, in a well known manner, in order to receive the air nozzle 3 1 whichis projected upwardly into the lower opened end of tube 18.

In operation, the air under the pressure emerging from the nozzle 34passes upwardly through the several tubes 18, 21, 22, and 23 and, in itsup'ward passage, causes the water to flow upwardly through cage 15 andthence through tube 18, and passages 17, and also to flow inwardlythrough perforations 26 and thence through passages 25 into the severaltubes 21, 22, and 24 and from thence up through the discharge pipe 24.

I claim as my invention:

1. An air lift pump nozzle comprising a main tubular body having openends, an air passage leading downwardly to the lower end of said tubularbody and carrying an upwardly projected air nozzle, a tube of lessdiameter than the interior of the main body mounted in the lower endthereof and surrounding the air nozzle, and a plurality of taperedinspirator tubes arranged in succession above the first tube and eachhaving water inlets leading into its lower end, the wall of said maintubular body being perforated, from a point below the upper end of thetube surrounding the air nozzle, upwardly.

2. An air lift pump nozzle comprising a main tubular body having openends, an air passage leading downwardly to the lower end of said tubularbody and carrying an upwardly projected air nozzle, a tube of lessdiameter than the interior of the main body mounted in the lower endthereof and this 13th day of June, A. D. one thousand surrounging theair nozzle, the walil 2f said nine hundred and ten.

main tu ular body being per orate rom a point below the upper end of thetiibe sur- OTTO HARRIS i 5 rounding the air nozzle, upwardly. Witnesses:

In witness whereof, I have hereunto set ARTHUR M. I-Ioon, my hand andseal at Indianapolis, Indiana, FRANK A. FAHLE.

